S-92165A121 0.109" ID x 0.232" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Excellent corrosion resistance from bronze construction, ideal for harsh industrial environments and electrical applications
• Precise dimensional fit with 0.109" ID specifically engineered for secure No. 3 screw fastening
• Durable performance with Rockwell B60 hardness providing optimal balance of strength and flexibility
• Reliable compliance with ASME B18.21.1 standards ensuring consistent quality and engineering precision
• Environmental safety through full RoHS 3 and REACH compliance for global regulatory acceptance
• Optimized thickness range (0.010"-0.016") allowing for proper compression and spring action in various assembly scenarios

Professional Applications & Engineering Value

These bronze tooth lock washers deliver critical vibration-resistant fastening solutions for demanding industrial applications where equipment reliability is paramount. The internal tooth design creates multiple biting points that dig into both the screw head and base material, effectively preventing rotational loosening caused by machinery vibration, thermal cycling, or dynamic stresses. The bronze material offers natural corrosion resistance while providing excellent electrical conductivity, making these internal tooth washers particularly valuable in electrical enclosures, marine equipment, and chemical processing applications where both secure fastening and material compatibility are essential. The precise dimensional control ensures consistent performance in precision assemblies requiring No. 3 screw fasteners, while the controlled hardness maintains spring tension without compromising material integrity.

Specification Summary & Compliance

This bronze tooth lock washer features precise inch system dimensions with 0.109" internal diameter and 0.232" outer diameter, specifically designed for No. 3 screws. The washer maintains dimensional accuracy per ASME B18.21.1 specifications with thickness ranging from 0.010" to 0.016". Manufactured from bronze with Rockwell B60 hardness, the component demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.